12439392 has 96 divisors (see below), whose sum is σ = 37884672. Its totient is φ = 3500544.

The previous prime is 12439387. The next prime is 12439409. The reversal of 12439392 is 29393421.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71818 + ... + 71990.

It is an arithmetic number, because the mean of its divisors is an integer number (394632).

Almost surely, 2^12439392 is an apocalyptic number.

12439392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12439392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18942336).

12439392 is an abundant number, since it is smaller than the sum of its proper divisors (25445280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12439392 is a wasteful number, since it uses less digits than its factorization.

12439392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 292 counting only the distinct ones).

The product of its digits is 11664, while the sum is 33.

The square root of 12439392 is about 3526.9522253640. The cubic root of 12439392 is about 231.7037439290.

The spelling of 12439392 in words is "twelve million, four hundred thirty-nine thousand, three hundred ninety-two".